Pump



Patented Oct. 28, 1924.

UNITED STATES 1,513,584 4PAf'rlszlsVr, OFFICE.

CHARLES conNwALL, or SALEM, omo, Ass'renon. To '.rnn mamma COMPANY, or'

SALEM, OHIO, A CORPORATION 0F OHIO.

PUMP. i

Application led March 7, 1924. Serial No. 697,626.

To all whom it may concern:

Beit known that I, CHARLES CORNWALL, a citizen of the United States, residing at Salem, in Ithe county of Columbiana and State of Ohio, have invented a certain new and useful Improvement in a Pump, of, v which the following is a full, clear, and eX- act description, reference being had to the accompanying drawings. l

lOne of the chief difficulties encountered in the operation of pumps in mines is the scoring of the c lindersresulting -fromthe -acid condition o the water flowing through the pump. Whenever the pump cylinders are made of case metal their size and weight and the lack of available space for hoisting machinery increases the difliculty of removing the cylinders fork replacement purposes. Moreover, the handling of heavy castings necessitates considerable delay in replacing cylinders, therefo're, the pump is required to be out of operation during this time. v

One of the objects of my invention, therefore, is the construction of a pump, the cylinder of which is made to resist the corrosive action of chemicals present in solutions in water'pumped from mines and which may be readily. replaced as a unit without disturbing the pipe connections to the Pump I accomplish the above objects by employing a cylinder, preferably of vitreous china, which is adjustably positioned between opposed. cylinder heads and which is readily removable as a unit therefrom. Suitable gaskets disposed between the china cylinder and the metallic cylinder heads provide for a fluid-tight connection, without crackin the cylinder when connection is made to t e pump.

One form of pump embodying my invention is illustrated in the drawings which will hereinafter be described in detail. The essential characteristics of my invention will be summarized in the claims.

In the drawings Fig. 1 is a side elevation of a pump showing a portion thereof in cross section and illustrating the use of my invention; Fig. 2 is an end elevation of the pump shown in Fig. 1; and Fig. 3 is a diagrammatic view illustrating the relative arrangement of parts of a pump embodying my invention.

I have illustrated my invention in connection with a pump having a base ,and frame l'l which houses the usual ,driving mechanism. Attached to the frame I have shown a rear cylinder head 12 which carries a valve casing 13 to which a'fluid conduit 14: is connected. The cylinder embodying my invention is indicated at 15 as being disposed between the rear cylinder headA 12 and the forward cylinder head 16. y The cylinder is made preferably of vitreous china, the ends of which are adapted to engage gaskets 17 and 18 which are ycarried by the rear cylinder hea-d and forward cylinder head respectively. A piston' indicated at 19 on a piston rod 20 is reciprocable ywithin. the cylinder by the driving` mechanism in the usual manner.

To permit replacement of the ,cylinder without disturbing the pipe connection with the valve casing, I have shown through bolts 21 which are spaced around the cylinder. As shownin Fig. l, each Vbolt is threaded at the inner end toreceive spaced `nuts 22 and 23 for vclamping the rear cylthe width of the slots 27 and 28 respectively through which the bolts extend. This permits a slight adjustment of the valve casing and forward cylinder head with reference to the cylinder to allow for inaccuracy in manufacture or size of gaskets. Moreover as shown in Fig. 3, the forward cylinder head may be removed to permit replacement of the cylinder without affectingl the connection between the frame and the rear cylinder head.

An advantage of a pump made in accordance with my invention is that cylinders of relatively light and non-corrosive material may be carried in stock to replace any which are damaged while in use. ,Moreover, the construction and relative arrangement of parts for positioning the cylinder is such that no relatively heavy castings need be ing such operation.

1. In a pump, the combination of a frame,

.an inner cylinder head carried thereby, a

discharge chamber connected to said cylinder head, a cylinder removably associated with said cylinder head, and an outer cylinder head removably associated with said cylinder and removably connected to said discharge chamber.

'2. In a pump, the combination, with a frame, of a pair of cylinder heads removably connected to the frame, a discharge chamber removably connected to both cylinder heads, and a cylinder removably positioned between said heads.

3. In a pump, the combination of a of cylinder heads removably connecte air to theframe, one independently of the other,

and a cylinder removably positioned between said heads.

4. In a pump, the combination with a frame, of apair of cylinder heads associated therewith, a valve casing, means for removably securing each head to'said casing independently of the vother head` a cylinder removably disposed between said heads, and means for removably connecting the cylinder heads to the frame.

5. In a pump, the co-mbination with a frame, of a pair of cylinder heads, a noncorrosive cylinder disposed intermediate said heads, means for removably connecting said heads together, and to the frame, and cushioning devices between the cylinder and said head.

' 6. In a pump, the combination, with a frame, of a pair of cylinder heads, va vitreous cylinder disposed intermediate said heads, and through bolts removably connecting said heads together and to the frame.

7. In a pump, the combination with a frame, of a pair of cylinder heads, a noncorrosive cylinder disposed intermediate said heads, cushioning devices between the ends of the cylinder and the respective heads, means for attaching the heads to the frame, said means being arranged to anchor one head independently of the other to said frame.

8. In a pump, the combination with a frame, of a cylinder head in an engagement with the frame, a non-corrosive cylinder having one end thereof engaging said head, a second cylinder head in engagement with the opposite end of said cylinder, a valvev casing resting on said heads, means for adjustably securing said casing to the heads, and threaded members 'extending through the heads and frame, whereby one cylinder head may be attached to the frame independently of the other head.

9. In a pump, the combination with. a

frame having spaced openings therein, of a pair of cylinder heads having openings therein aligned with the openings in the frame, a cylinder disposed intermediate said heads, cushioning devices intermediate the ends of the cylinder and the respective heads, threaded members passing through said openings for connecting the cylinder and heads to the frame, said members being so arranged that one head and the cylinder may be removed without disturbing the connection between the other head and the frame, a valve casing resting on said head, and means for removably connecting the casing to the heads.,

In testimony whereof, `I hereunto afiix my signature.

'cuantas oonuwanr.. 

